You would need around 5,156.44€ (4,516.41£) in London to maintain the same standard of life that you can have with 4,500.00€
in Paris (assuming you rent in both cities). This calculation uses our Cost of Living Plus Rent Index to compare cost of living. This assumes net earnings (after income tax). You can change the amount in this calculation.

Indices Difference

Consumer Prices in London are 2.90% lower than in Paris

Consumer Prices Including Rent in London are 14.59% higher than in Paris